Dump an .lnk file

dumplnk.py

#!/usr/bin/env python3
"""
Dump an .lnk file.
"""
import sys
import argparse
from pprint import pprint

from win32com.shell import shell, shellcon  # type: ignore
from win32com.propsys import propsys  # type: ignore
import pythoncom


SLGP_RELATIVEPRIORITY = 0x0008


def main():
    parser = argparse.ArgumentParser(description=__doc__)

    parser.add_argument("file")

    args = parser.parse_args()

    shortcut = pythoncom.CoCreateInstance(
        shell.CLSID_ShellLink, None,
        pythoncom.CLSCTX_INPROC_SERVER, shell.IID_IShellLink
    )

    shortcut.QueryInterface(pythoncom.IID_IPersistFile).Load(args.file)
    shortcut_data_list = shortcut.QueryInterface(shell.IID_IShellLinkDataList)
    propstore = shortcut.QueryInterface(propsys.IID_IPropertyStore)

    out = {
        "RawPath": shortcut.GetPath(shell.SLGP_RAWPATH),
        "RelativePath": shortcut.GetPath(SLGP_RELATIVEPRIORITY),
        "IDList": shortcut.GetIDList(),
        "Description": shortcut.GetDescription(),
        "WorkingDirectory": shortcut.GetWorkingDirectory(),
        "Arguments": shortcut.GetArguments(),
        "Hotkey": shortcut.GetHotkey(),
        "ShowCmd": shortcut.GetShowCmd(),
        "IconLocation": shortcut.GetIconLocation(),
        "Flags": shortcut_data_list.GetFlags(),
    }

    data = out["data"] = {}
    flags = out["Flags"]
    if flags & shellcon.SLDF_HAS_DARWINID:
        data["EXP_DARWIN_LINK"] = shortcut_data_list.CopyDataBlock(shellcon.EXP_DARWIN_ID_SIG)

    try:
        data["EXP_SPECIAL_FOLDER"] = shortcut_data_list.CopyDataBlock(shellcon.EXP_SPECIAL_FOLDER_SIG)
    except pythoncom.error:
        pass

    if flags & shellcon.SLDF_HAS_EXP_SZ:
        data["EXP_SZ_LINK"] = shortcut_data_list.CopyDataBlock(shellcon.EXP_SZ_LINK_SIG)

    if flags & shellcon.SLDF_HAS_EXP_ICON_SZ:
        data["EXP_SZ_ICON"] = shortcut_data_list.CopyDataBlock(shellcon.EXP_SZ_ICON_SIG)

    try:
        data["NT_CONSOLE_PROPS"] = shortcut_data_list.CopyDataBlock(shellcon.NT_CONSOLE_PROPS_SIG)
    except pythoncom.error:
        pass

    try:
        data["NT_FE_CONSOLE_PROPS"] = shortcut_data_list.CopyDataBlock(shellcon.NT_FE_CONSOLE_PROPS_SIG)
    except pythoncom.error:
        pass

    properties = out["Properties"] = []
    for i in range(propstore.GetCount()):
        key = propstore.GetAt(i)
        prop = {
            "Key": key,
            "Value": propstore.GetValue(key).ToString(),
        }

        try:
            description = propsys.PSGetPropertyDescription(key)
            prop["CanonicalName"] = description.GetCanonicalName()
            prop["DisplayName"] = description.GetDisplayName()
        except pythoncom.error:
            pass

        properties.append(prop)

    pprint(out)


if __name__ == "__main__":
    sys.exit(main())